A Study of High-Dimensional Data Imputation Using Additive LASSO Regression Model

With the rapid growth of computational domains, bioinformatics finance, engineering, biometrics, and neuroimaging emphasize the necessity for analyzing high-dimensional data. Many real-world datasets may contain hundreds or thousands of features. The common problem in most of the knowledge-based classification problems is quality and quantity of data. In general, the common problem with many high-dimensional data samples is that it contains missing or unknown attribute values, incomplete feature vectors, and uncertain or vague data which have to be handled carefully. Due to the presence of a large segment of missing values in the datasets, refined multiple imputation methods are required to estimate the missing values so that a fair and more consistent analysis can be achieved. In this paper, three imputation (MI) methods, mean, imputations predictive mean, and imputations by additive LASSO, are employed in cloud. Results show that imputations by additive LASSO are the preferred multiple imputation (MI) method.